Patents by Inventor Roger D. Dellinger

Roger D. Dellinger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pruning apparatus and method
    Patent number: 5694753
    Abstract: The present invention is an automated pruning apparatus that requires little or no follow-up hand pruning and requires no sensors to avoid supportive trunks or posts. The present invention uses at least one pair of flat, close angled toothed, counter rotating blades. Woody branches are directed to the counter rotating blades first with a lifting arm and secondly by a quilled drum.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: December 9, 1997
    Assignee: Battelle Memorial Institute
    Inventor: Roger D. Dellinger